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The ISTA Rules PDFs contain the full text in English, French and German.Changes from the previous year's Rules are highlighted in yellow with details of the changes.Download this PDF file for details how to access the languages and the highlighted changes.

The ISTA Executive Committee hopes that the membership finds having the ISTA Rules in electronic format useful and a step forward in membership services. The Secretariat staff will do its best to ensure that everything works smoothly. Further information will be provided on the ISTA web site.

If you have any questions, comments or ideas about the electronic Rules, please contact Jonathan Taylor at: jonathan.taylor@ista.ch.

The International Rules for Seed Testing are ISTA’s primary instrument to promote uniformity in seed testing. The ISTA Rules have 19 sections that provide definitions and standardized methods to be used in, for example, sampling, testing seed lot quality and reporting results forinternational trade. The ISTA Rules are also a useful reference guide to germination conditions and methods for over 1000 species.

The International Rules for Seed Testing are approved by and amended at ISTA Ordinary Meetings on the basis of advice tendered by the ISTA Technical Committees.The 2014 edition (effective 1 January 2014) includes the latest changes which were passed at the ISTA Ordinary General Meeting 2013, held at Antalya, Turkey.

Additional information on seed testing can be found in various ISTA Handbooks, however, without having legal character.

Universal List of SpeciesISTA list of 130 plant species that accredited laboratories may wish to include in their seed collections More info »
Accreditation Documents for the Testing of Specified Traits
Related Documents for download More info »